Overloaded and overwhelmed is the norm these days. Most leaders feel they have too many conflicting priorities. But research has shown that the more these executives have to do, the less their company earns. In fact, high-performing companies have leaders who focus on high-priority initiatives, not everything under the sun. Stop asking: How can I find more opportunities? Instead try: How can I focus on opportunities that will help my company excel? Know what you are best at—the capabilities you have that others don't—and focus where you can succeed. Learn to say no when things seem appealing and even lucrative, but do not offer you a real chance to win.
Source: "Stop Chasing Too Many Priorities" by Paul Leinwand and Cesare Mainardi.